eclipse-theia/theia · Security
Remote code execution in Eclipse Theia
- GHSA ID
- GHSA-v9w2-v7j9-rjpr
- CVE ID
- CVE-2021-34435
- Severity
- high
- Published
- Updated
- CVSS
- 8.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS v3
- 8.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Description
In Eclipse Theia 0.3.9 to 1.8.1, the "mini-browser" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews a malicious file.
CWEs
- CWE-346 · Origin Validation Error
- CWE-668 · Exposure of Resource to Wrong Sphere
- CWE-942 · Permissive Cross-domain Security Policy with Untrusted Domains